TrackManiaControl/application/core/Utils/WebReader.php

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<?php
namespace ManiaControl\Utils;
use cURL\Request;
use cURL\Response;
use ManiaControl\ManiaControl;
/**
* Reader Utility Class for efficient Web Requests
*
* @author ManiaControl Team <mail@maniacontrol.com>
* @copyright 2014 ManiaControl Team
* @license http://www.gnu.org/licenses/ GNU General Public License, Version 3
*/
abstract class WebReader {
/**
* Load a URL via GET
*
* @param string $url
* @param callable $function
* @return Response
*/
public static function loadUrl($url, callable $function = null) {
$request = static::newRequest($url);
$response = $request->send();
if ($function) {
static::performCallback($response, $function);
}
return $response;
}
/**
* Create a new cURL Request for the given URL
*
* @param string $url
* @return Request
*/
protected static function newRequest($url) {
$request = new Request($url);
$options = $request->getOptions();
$options->set(CURLOPT_TIMEOUT, 5) // timeout
->set(CURLOPT_HEADER, false) // don't display response header
->set(CURLOPT_CRLF, true) // linux line feed
->set(CURLOPT_ENCODING, '') // accept encoding
->set(CURLOPT_USERAGENT, 'ManiaControl v' . ManiaControl::VERSION) // user-agent
->set(CURLOPT_RETURNTRANSFER, true) // return instead of output content
->set(CURLOPT_AUTOREFERER, true); // follow redirects
return $request;
}
/**
* Perform the given callback function with the response
*
* @param Response $response
* @param callable $function
*/
protected static function performCallback(Response $response, callable $function) {
$content = $response->getContent();
$error = $response->getError()->getMessage();
call_user_func($function, $content, $error);
}
/**
* Load a URL via POST
*
* @param string $url
* @param string $content
* @param callable $function
* @return Response
*/
public static function postUrl($url, $content = null, callable $function = null) {
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$request = static::newRequest($url);
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$request->getOptions()->set(CURLOPT_POST, true); // post method
if ($content) {
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$request->getOptions()->set(CURLOPT_POSTFIELDS, $content); // post content field
}
$response = $request->send();
if ($function) {
static::performCallback($response, $function);
}
return $response;
}
}